1. Preheat the oven to 220C/425F/Gas 7.2. Sift the flour and baking powder into a large bowl, and rub in the soya margarine until the mixture resembles breadcrumbs.3. Add the sugar and mix together thoroughly.4. Make a well in the middle of the mixture, and slowly pour in the soya milk, stirring with a metal spoon. Bring the mixture together until it forms a dough.5. Generously flour a large board and knead the dough for five minutes. Roll it out to a thickness of about 2.5cm/1in and, using a fluted 9cm/3in cutter, cut rounds from the dough.6. Place the rounds on a greased and floured non-stick baking tray, and glaze the top using the extra soya milk.7. Cook in the top of the oven for about 15 minutes, until a deep golden brown colour.8. Leave to cool.9. Serve with strawberry jam.